JP2002036764A - Prepaid sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to manufacture a prepaid card easily and cheaply without generating any shave at the time of confirming information in a prepaid sheet used for service of prepaid method. SOLUTION: A thermal coupler layer 30 is provided on the surface of a base material sheet 20 and transparent ink 40 forms invisible information of code number 50 on the thermal coupler layer 30. By scraping an invisible information area 11, the difference of frictional resistance between the transparent ink 40 and the thermal coupler layer 30 makes only the thermal coupler layer 30 develop color and reveals the code number 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prepaid sheet in which only authorized users can confirm invisible information such as a password, and more particularly to a prepaid sheet which can be manufactured at low cost.

[0002]

2. Description of the Related Art For example, when using a prepaid mobile phone, a user purchases a prepaid card and rubs a secret number hidden as invisible information on the prepaid card with a nail or a coin. After confirming and confirming, by entering this PIN on your mobile phone,
Use of mobile phones becomes possible.

[0003] As this prepaid card, for example,
The surface of the personal identification number printed on the base material surface is hidden by the shielding ink layer, and by rubbing this shielding ink layer with nails or coins, the user can confirm the personal identification number for the first time. It is a fact.

[0004]

As described above, as a prepaid sheet used for a prepaid card or the like of a cellular phone, information such as a personal identification number is printed on a card base material, and furthermore, the surface is shielded so as to conceal the surface. It is necessary to coat the ink layer, and in addition to printing the password,
It has been pointed out that the application step of the shielding ink layer is bulky, resulting in an increase in cost.

Further, when the password is confirmed, shavings of the shielding ink layer are generated, so that the appearance of the card is deteriorated and shavings and the like are scattered around.

[0006] This kind of card is a kind of cash voucher,
Strict control is required for its production and storage, and the dealers also need to be very careful in their handling.

The present invention has been made in view of such circumstances, and has as its object to provide a prepaid sheet which can be easily and inexpensively manufactured without shavings or the like when a password or the like is confirmed. .

[0008]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 of the present application provides a thermosensitive coloring layer on the surface of a substrate sheet, and a number,
Invisible information such as characters is formed by transparent ink.

The invention according to claim 2 of the present application is characterized in that transparent ink is applied around numbers, characters, and the like.

Further, the invention according to claim 3 of the present application is characterized in that invisible information is formed by a thermal printer.

The base sheet may be a paper material such as synthetic paper or neutral paper, or a synthetic resin sheet such as polyester (PET) or polypropylene (PP). When used as a material sheet, it is possible to use a thermal roll paper provided with a thermosensitive coloring layer on the surface of a paper material.

Further, as the transparent ink formed on the surface of the heat-sensitive coloring layer, an ink having excellent surface lubricity and a small resistance value against friction is used, and invisible information such as a password is positive or negative. It is formed to be in a state.

As is apparent from the above configuration, when the invisible information area of the prepaid sheet according to the present invention is rubbed with a nail or a coin or the like, the difference in the frictional resistance between the heat-sensitive coloring layer and the transparent ink causes the transparent ink. The heat-sensitive coloring layer at a portion where the layer is not provided develops color, and invisible information such as a password appears.

Therefore, the conventional shavings and the like do not scatter around, and the appearance of the prepaid sheet itself is good. Furthermore, since the transparent ink only needs to be applied on the thermosensitive coloring layer of the substrate sheet, the number of steps can be simplified. In particular, if it is made by using a transparent ink ribbon by a thermal printer, it can be made whenever necessary, and it is not necessary to store it as a voucher, which is extremely convenient for management.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a prepaid sheet according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment in which the present invention is applied to a prepaid card of a mobile phone, FIG. 2 is a sectional view of the prepaid card, and FIGS. 3 and 4 show invisible information in the prepaid card. FIG. 5 is a plan view and a cross-sectional view of the prepaid card in a state where the card is folded, and FIG. 5 is an explanatory diagram showing a management form of the prepaid card.

First, as shown in FIGS. 1 and 2, a prepaid card 10 is provided with a heat-sensitive coloring layer 3 on the surface of a base sheet 20.
0 is provided, and a transparent ink 40 is printed on the surface.

This transparent ink 40 has excellent surface lubricity,
The frictional resistance is very small, and the secret number 50 is printed in a confidential state so as to appear positive.

For example, if the personal identification number 50 is set to a four-digit number of 1, 2, 3, and 4, when the transparent ink 40 is printed, the invisible information area 11 includes 1, 2, 3, and 4 in the middle. In order to be in the state of the hollow (the hollow part is indicated by reference numeral 41),
Print around it.

Therefore, in the state shown in FIG. 1 and FIG. 2 in which the prepaid card 10 is issued, since the password is formed by the transparent ink 40, the password 50 cannot be read, and the password cannot be read by a third party. The number 50 does not leak.

Then, the issued prepaid card 10
When the user rubs the invisible information area 11 with a nail, a coin, or the like, the surface of the transparent ink 40 has good slipperiness, so that the heat generation can be suppressed to a low level. In this case, the thermosensitive coloring layer 30 generates heat due to frictional heat, and the coloring portion 31 develops color, so that the passwords (1, 2, 3, 4) clearly appear as shown in FIGS.

It is natural that the number itself may be printed with transparent ink so that the personal identification number appears as a negative.

Therefore, the prepaid card 1 according to the present invention
In the case of 0, no shavings or the like are generated at the time of confirming the personal identification number 50, so that there is no dirt due to the shavings adhering to the prepaid card 10 itself, and the problem that the shavings and the like are scattered around is not occurred. Can be prevented.

Further, the personal identification number 50 may be hollowed out with respect to the base sheet 20 coated with the thermosensitive coloring layer 30.
A transparent ink 40 is provided around each numeral constituting the personal identification number 50.
Since the production is completed in a printing process of simply printing the prepaid card, the production cost of the prepaid card 10 can be reduced.

Next, when the prepaid card 10 is prepared by a thermal printer, a management mode will be described. The card A before issuance is a card A in which a thermosensitive coloring layer 30 is provided on the surface of a base sheet 20. The card A before issuance is printed by the printer 60 using the transparent ink ribbon with the password 50 in the state of being hollowed out, and the above-mentioned prepaid card 10 is issued. This eliminates the need to store and manage the vouchers.

When the user rubs the surface of the invisible information area 11 of the purchased prepaid card 10, the personal identification number 50 appears.
After inputting the password 50 into the mobile phone, the mobile phone may be used.

On the other hand, predetermined information is input to the terminal computer 70 connected to the printer 60 when the prepaid card 10 is issued, and data is input from the terminal computer 70 to the host computer 80 for management, whereby the password is transmitted. The number of uses is managed by the host computer 80.

In the above-described embodiment, the use of the prepaid card 10 of the mobile phone has been described. However, the present invention can be applied to a general prepaid sheet used for a prepaid system service in which only authorized users can confirm a personal identification number or the like. Yes, and it is also applicable to instant lottery and the like.

[0029]

As described above, according to the prepaid sheet according to the present invention, since no shielding ink layer is required, no shavings or the like are generated at the time of confirming information.
There is an effect that the appearance of the sheet is not deteriorated, and the problem that shavings and the like are scattered around can be effectively solved.

Further, according to the prepaid sheet of the present invention, the transparent ink may be subjected to a printing process so that invisible information is formed on the thermosensitive coloring layer on the surface of the base sheet. Cards can be easily issued, prepaid cards can be easily and inexpensively manufactured, and significant cost reductions can be caused. Also, confidential information is not leaked to third parties, and cards are stored as cash vouchers at retailers. This has the effect that management becomes unnecessary.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state after a card is issued in a prepaid card according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a configuration of the prepaid card shown in FIG.

FIG. 3 is a plan view showing a state in which a personal identification number is revealed in the prepaid card shown in FIG. 1;

FIG. 4 is a sectional view showing a configuration of the prepaid card shown in FIG. 3;

FIG. 5 is an explanatory diagram showing a management form of a prepaid card according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Prepaid card 11 Invisible information area 20 Base material sheet 30 Thermosensitive coloring layer 31 Coloring part 40 Transparent ink 41 Hollow part 50 PIN 50 Printer 70 Terminal computer 80 Host computer

Claims (3)

[Claims] 1. A prepaid sheet characterized in that a heat-sensitive coloring layer is provided on the surface of a base material sheet, and invisible information such as numbers and characters is formed on the heat-sensitive coloring layer with transparent ink. 2. The prepaid sheet according to claim 1, wherein a transparent ink is applied around numbers, characters and the like. 3. The prepaid sheet according to claim 1, wherein the invisible information is formed by a thermal printer.